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Yamaha YZ450F User Manual

Yamaha YZ450F
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CHASSIS SPECIFICATIONS
2-9
Brake disk thickness limit 2.5 mm (0.10 in)
Brake pad lining thickness (inner) 4.4 mm (0.17 in)
Limit 1.0 mm (0.04 in)
Brake pad lining thickness (outer) 4.4 mm (0.17 in)
Limit 1.0 mm (0.04 in)
Master cylinder inside diameter 9.52 mm (0.37 in)
Caliper cylinder inside diameter 22.65 mm 2 (0.89 in 2)
Recommended brake fluid DOT 4
Rear brake
Type Single disc brake
Operation Right foot operation
Rear disc brake
Disc outside diameter thickness 245 4.0 mm (9.6 0.16 in)
Brake disc thickness limit 3.5 mm (0.14 in)
Brake disc deflection limit 0.15 mm (0.0059 in)
Brake pad lining thickness (inner) 6.4 mm (0.25 in)
Limit 1.0 mm (0.04 in)
Brake pad lining thickness (outer) 6.4 mm (0.25 in)
Limit 1.0 mm (0.04 in)
Master cylinder inside diameter 11.0 mm (0.43 in)
Caliper cylinder inside diameter 25.40 mm 1 (1.00 in 1)
Recommended fluid DOT 4
Steering
Steering bearing type Taper roller bearing
Center to lock angle (left) 43.0 °
Center to lock angle (right) 43.0 °
Front suspension
Type Telescopic fork
Spring/shock absorber type Coil spring/oil damper
Front fork travel 310.0 mm (12.20 in)
Fork spring free length 497.0 mm (19.57 in)
Limit 492.0 mm (19.37 in)
Installed length 497.0 mm (19.57 in)
Spring rate K1 5.00 N/mm (0.51 kgf/mm, 28.55 lbf/in) (USA)
(CAN)
4.70 N/mm (0.48 kgf/mm, 26.84 lbf/in) (EUR)
(JPN) (AUS) (NZL) (ZAF)
Spring stroke K1 0.0–310.0 mm (0.00–12.20 in)
Inner tube outer diameter 48 mm (1.9 in)
Inner tube bending limit 0.2 mm (0.01 in)
Optional spring available Yes
Recommended oil Suspension oil S1
Standard oil amount 511.0 cm
3
(17.28 US.oz, 18.02 Imp.oz) (USA)
(CAN)
551.0 cm
3
(18.63 US.oz, 19.43 Imp.oz) (EUR)
(JPN) (AUS) (NZL) (ZAF)
Rebound damping adjusting positions
* Position in which the adjuster is turned in finger tight
Minimum 20 click (s) out*
Standard 10 click (s) out* (USA) (CAN)
8 click (s) out* (EUR) (JPN) (AUS) (NZL) (ZAF)
Maximum (hard) Fully turned in

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Yamaha YZ450F Specifications

General IconGeneral
Displacement449cc
Bore x Stroke97.0 mm x 60.8 mm
Transmission5-speed
Final DriveChain
Width32.5 in
Seat Height38.2 in
Wheelbase58.5 in
Fuel Capacity1.6 gal
Fuel SystemFuel Injection
Front SuspensionKYB® Speed-Sensitive System inverted fork; fully adjustable, 12.2-in travel
Front BrakesHydraulic single disc, 270mm
Rear BrakesHydraulic single disc
Front Tire80/100-21
Rear Tire120/80-19
Wet Weight245 lbs
Engine TypeLiquid-cooled, 4-stroke, DOHC, 4-valve

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